Home / 143,461.44-215,204.16-38,280

Finding the Fourth Proportional to 143,461.44, 215,204.16 and 38,280

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Solution

The fourth proportional to 143,461.44, 215,204.16 and 38,280 is: 57,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,461.44 : 215,204.16 = 38,280 : x
  2. Step 2: Convert to fraction form
    143,461.44/215,204.16 = 38,280/x
  3. Step 3: Cross multiply
    143,461.44x = 215,204.16 × 38,280
  4. Step 4: Simplify right side
    143,461.44x = 8,238,015,244.80
  5. Step 5: Solve for x
    x = 8,238,015,244.80/143,461.44
  6. Step 6: Final answer
    x = 57,423.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.